The arrival of Willy Caballero has raised fears over Joe Hart’s position at Manchester City, and the fact the England keeper started Sunday on the substitutes’ bench only underlined the fact he will now have to battle for his place.

But Caballero should really have stopped goals by Santi Cazorla and Olivier Giroud, and the errors highlighted the fact the Argentine may need some time to settle into English football.

Hart came through a rough patch of form last season and that mental strength, together with his undoubted talent, should be enough for him to see off Caballero’s challenge.

Vincent Kompany has been granted an extended break after the World Cup and his absence once again left a gaping hole in the City defence.

Manchester City have Eliaquim Mangala joining from Porto, but Dedryck Boyata is nowhere near good enough and 21-year-old Matija Nastasic is not a leader.

Belgium international Kompany is the glue that binds the City back four together and he will be needed to help Mangala get used to the Premier League.

Without Kompany, City may well be vulnerable.

3. Sagna’s timing might not be the best

When Kolo Touré, Emmanuel Adebayor, Gaël Clichy and Samir Nasri quit Arsenal for Manchester City, it was unquestionable that the trio had a better chance of winning silverware in Manchester.

But right-back Bacary Sagna may well have left Arsenal at just the wrong time, as Wenger’s team are now closer to City than they have been in recent years.

Sagna could well have added to his FA Cup winners’ medal by signing a new contract at the Emirates.

The Frenchman will be fighting it out for trophies with City, but may not fully appreciate what he has left behind.

ARSENAL

1. Wenger finally has a squad who can win title

It should be remembered that the Community Shield is only a friendly, but a look at the two team sheets on Sunday showed Arsenal finally have the depth to live with their rivals.

Without all of their World Cup-winning Germans and Theo Walcott, Arsenal were able to field a stronger side and substitutes’ bench than Manchester City, who also had a number of stars missing.

There are now no excuses. Arsène Wenger has the squad at his disposal to cope with injuries and suspensions, and fight for the Premier League title.

2. Ramsey looks set to start this season where he finished last

Barring injury, Aaron Ramsey would have been a serious challenger to Luis Suárez for Player of the Year last season.

The challenge now is for Ramsey to do even better this campaign and his goalscoring performance at Wembley was certainly encouraging.

Ramsey wants to be a driving influence from midfield for Arsenal similar to Steven Gerrard for Liverpool and Frank Lampard when he was at Chelsea. Gerrard and Lampard would certainly have been happy with his finish on Sunday.

3. Wilshere can prove his doubters wrong

Tony Adams was the latest ex-professional to tell Jack Wilshere he needs to up his game for Arsenal at the weekend. This is undoubtedly a big season for Wilshere, but the midfielder has more than enough talent and character to fulfil his potential with Arsenal.

Playing in a deep role next to Mikel Arteta and up against Yaya Touré, Wilshere passed the ball well, tried to get Arsenal on the front foot and was tough in the tackle.

England manager Roy Hodgson will have been pleased to Wilshere’s Wembley display, even though he was not there to see it.